Home / 298,955,218.40-448,432,827.60-221,471,120.60

Finding the Fourth Proportional to 298,955,218.40, 448,432,827.60 and 221,471,120.60

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Solution

The fourth proportional to 298,955,218.40, 448,432,827.60 and 221,471,120.60 is: 332,206,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,955,218.40 : 448,432,827.60 = 221,471,120.60 : x
  2. Step 2: Convert to fraction form
    298,955,218.40/448,432,827.60 = 221,471,120.60/x
  3. Step 3: Cross multiply
    298,955,218.40x = 448,432,827.60 × 221,471,120.60
  4. Step 4: Simplify right side
    298,955,218.40x = 99,314,920,842,398,608
  5. Step 5: Solve for x
    x = 99,314,920,842,398,608/298,955,218.40
  6. Step 6: Final answer
    x = 332,206,680.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.